From: Avi Kivity <avi@xxxxxxxxxx> Instead of allocating a separate chunk for the first 640KB and another for 1MB+, allocate one large chunk. This plays well in terms of alignment and size with large pages. Signed-off-by: Avi Kivity <avi@xxxxxxxxxx> (cherry picked from commit cfe0cef63988a7876a9bbcb098500a3983e63814) Index: qemu-kvm/hw/pc.c =================================================================== --- qemu-kvm.orig/hw/pc.c +++ qemu-kvm/hw/pc.c @@ -798,18 +798,11 @@ static void pc_init1(ram_addr_t ram_size vmport_init(); /* allocate RAM */ - ram_addr = qemu_ram_alloc(0xa0000); + ram_addr = qemu_ram_alloc(below_4g_mem_size); cpu_register_physical_memory(0, 0xa0000, ram_addr); - - /* Allocate, even though we won't register, so we don't break the - * phys_ram_base + PA assumption. This range includes vga (0xa0000 - 0xc0000), - * and some bios areas, which will be registered later - */ - ram_addr = qemu_ram_alloc(0x100000 - 0xa0000); - ram_addr = qemu_ram_alloc(below_4g_mem_size - 0x100000); cpu_register_physical_memory(0x100000, below_4g_mem_size - 0x100000, - ram_addr); + ram_addr + 0x100000); /* above 4giga memory allocation */ if (above_4g_mem_size > 0) { -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html